BQ24083_16 Datasheet, PDF (11/24 Pages) Texas Instruments – ADJUSTABLE BATTERY VOLTAGE

bq24083
www.ti.com .............................................................................................................................................................. SLUS848A – MAY 2008 – REVISED APRIL 2009
POR
V_CC > V_I(OUT)
checked at all
No
times?
Yes
V_I(OUT)<V_(LOWV)
?
Yes
No
Reset All Timers,
Start t_(CHG) Timer
SLEEP MODE
Indicate SLEEP
MODE
Reset and Start
t_(PRECHG) Timer
Regulate
I_O(PRECHG)
and
Indicate Charge-
In-Progress
Regulate Current
or Voltage
and
Indicate Charge-
In-Progress
Yes
No
V_I(OUT)<V_(LOWV)
?
Yes
t_(CHG) Expired?
No
Yes
Yes
V_I(OUT)<V_(LOWV)
?
No
t_(PRECHG)
Expired?
No
Yes
Fault Condition
Indicate Fault
I_term
No
Detection
?
Yes
Turn Off Charge
Yes
V_I(OUT) >V_(RCH)
?
No
Enable I_(FAULT)
Current
Indicate DONE
V_I(OUT) <V_(RCH)
No
?
Yes
V_I(OUT) >V_(RCH)
No
?
Yes
Disable I_(FAULT)
Current
Figure 7. Operational Flow Chart
F0018-01
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